煤炭工程 ›› 2020, Vol. 52 ›› Issue (1): 133-137.doi: 10.11799/ce202001027

• 研究探讨 • 上一篇    下一篇

煤料转运过程中的影响因素分析与仿真

秦翥   

  1. 中煤科工集团上海有限公司
  • 收稿日期:2018-12-26 修回日期:2019-04-15 出版日期:2020-01-10 发布日期:2020-05-13
  • 通讯作者: 秦翥 E-mail:724156108@qq.com

Analysis and simulation on the influence factors of the process in coal transport

Zhu /Qin   

  • Received:2018-12-26 Revised:2019-04-15 Online:2020-01-10 Published:2020-05-13
  • Contact: Zhu /Qin E-mail:724156108@qq.com

摘要: 针对转载溜槽部件受力过大、磨损严重的问题,利用煤料卸运时的运行轨迹及能量转换关系,得出影响转运的转载溜槽运行条件与结构参数。通过离散元分析软件EDEM对直线型转载溜槽内的煤料在不同卸料输送带带速、转载溜槽倾角下的运行状态进行仿真。结果表明:相同工况下,当带速低于额定带速约25%时,煤料对漏斗的受力平均值最小且持续时间最短,当带速高于额定带速时,漏斗的受力平均值增涨较为明显|当转载溜槽倾角数值越大,则煤料对受料输送带的受力平均值越大、持续时间越长,当倾角小于一定值时,存在煤料堵塞的风险。结论将为矿用装备绿色化发展提供合理依据与数据支撑。

关键词: 带式输送机, 转载溜槽, 卸料轨迹, 离散单元法, EDEM仿真

Abstract: To solve the problem of excessive force and serious wear which impact on components of the transfer chute,the structural design parameters affecting the transshipment are obtained by using the trajectory and energy conversion relationship when the coal material is discharged.Using the discrete element analysis EDEM software , to simulate discharge status of the coal material in the linear transfer chute under the different discharge conveyor belts and the angle of the transfer chute.The results show that under the same working conditions, when the belt speed is lower than the rated maximum belt speed by about 25%, the average force value of the coal material to the funnel is the smallest and the force duration is the shortest. When the belt speed is higher than the rated maximum belt speed, The average force value of the funnel increases obviously; when the dip angle of the transfer chute is larger, the average force value of the coal material to the receiving conveyor belt is larger and the duration of the force is longer, and the conveyor belt has a deviation. The problem of missing material is more obvious.The conclusion will provide a reasonable basis and data support for the green development of mining equipment.

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